/**
  ******************************************************************************
  * @file    Project/STM32F4xx_StdPeriph_Templates/stm32f4xx_it.c 
  * @author  MCD Application Team
  * @version V1.8.0
  * @date    04-November-2016
  * @brief   Main Interrupt Service Routines.
  *          This file provides template for all exceptions handler and 
  *          peripherals interrupt service routine.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2016 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_it.h"
#include "main.h"

/** @addtogroup Template_Project
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/******************************************************************************/
/*            Cortex-M4 Processor Exceptions Handlers                         */
/******************************************************************************/

/**
  * @brief  This function handles NMI exception.
  * @param  None
  * @retval None
  */
void NMI_Handler(void)
{
}

/**
  * @brief  This function handles Hard Fault exception.
  * @param  None
  * @retval None
  */
void HardFault_Handler(void)
{
  /* Go to infinite loop when Hard Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Memory Manage exception.
  * @param  None
  * @retval None
  */
void MemManage_Handler(void)
{
  /* Go to infinite loop when Memory Manage exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Bus Fault exception.
  * @param  None
  * @retval None
  */
void BusFault_Handler(void)
{
  /* Go to infinite loop when Bus Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles Usage Fault exception.
  * @param  None
  * @retval None
  */
void UsageFault_Handler(void)
{
  /* Go to infinite loop when Usage Fault exception occurs */
  while (1)
  {
  }
}

/**
  * @brief  This function handles SVCall exception.
  * @param  None
  * @retval None
  */
void SVC_Handler(void)
{
}

/**
  * @brief  This function handles Debug Monitor exception.
  * @param  None
  * @retval None
  */
void DebugMon_Handler(void)
{
}

/**
  * @brief  This function handles PendSVC exception.
  * @param  None
  * @retval None
  */
void PendSV_Handler(void)
{
}

/**
  * @brief  This function handles SysTick Handler.
  * @param  None
  * @retval None
  */
void SysTick_Handler(void)
{
//  TimingDelay_Decrement();
}

/******************************************************************************/
/*                 STM32F4xx Peripherals Interrupt Handlers                   */
/*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
/*  available peripheral interrupt handler's name please refer to the startup */
/*  file (startup_stm32f4xx.s).                                               */
/******************************************************************************/

/**
  * @brief  This function handles PPP interrupt request.
  * @param  None
  * @retval None
  */
/*void PPP_IRQHandler(void)
{
}*/


void EXTI9_5_IRQHandler(void)
{
  if(EXTI_GetITStatus(EXTI_Line9))
  {
    EXTI_ClearITPendingBit(EXTI_Line9);
    
     GPIO_ToggleBits(GPIOF,GPIO_Pin_8);
  
   }
}
//void USART6_IRQHandler(void)
//{
//	if(USART_GetITStatus(USART6,USART_IT_RXNE))
//	{
//		USART_ClearITPendingBit(USART6,USART_IT_RXNE);
//		USART_SendData(USART6, USART_ReceiveData(USART6));
//	}
//}
// 定义全局缓冲区和索引，用于存储接收到的字符串

#include"string.h"
uint8_t usart6_rx_buf[20] = {0};  // 缓冲区，可根据需要调整大小
uint8_t usart6_rx_idx = 0;       // 当前接收位置索引

void USART6_IRQHandler(void)
{
    uint8_t rx_data;
    
    if(USART_GetITStatus(USART6, USART_IT_RXNE))
    {
        USART_ClearITPendingBit(USART6, USART_IT_RXNE);
        
        // 读取接收到的数据
        rx_data = USART_ReceiveData(USART6);
        
        // 回显数据（可选，保持原功能）
        USART_SendData(USART6, rx_data);
        
        // 判断是否接收到换行符或回车符（作为命令结束标志）
        if(rx_data == '\r' || rx_data == '\n')
        {
            // 比较接收到的字符串
            if(strcmp((char*)usart6_rx_buf, "ledopen") == 0)
            {
                  GPIO_SetBits(GPIOC, GPIO_Pin_4 );  // 点亮LED
            }
            else if(strcmp((char*)usart6_rx_buf, "ledclose") == 0)
            {
              GPIO_ResetBits(GPIOC, GPIO_Pin_4 ); // 熄灭LED
            }
            
            // 清空缓冲区，准备下一次接收
            memset(usart6_rx_buf, 0, sizeof(usart6_rx_buf));
            usart6_rx_idx = 0;
        }
        else
        {
            // 将数据存入缓冲区，防止溢出
            if(usart6_rx_idx < sizeof(usart6_rx_buf) - 1)
            {
                usart6_rx_buf[usart6_rx_idx++] = rx_data;
            }
        }
    }
}

/**
  * @}
  */ 


/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
